Foundation November 2017 Paper 2 Q12
12. Sarah is painting a wall with the dimensions shown below.
There is a door in the wall measuring 2 m by 1 m.
There are two square windows with sides of length 1·6 m.
Diagram not drawn to scale
Each tin of paint can cover \(6\,\text{m}^2\).
What is the smallest number of tins of paint that Sarah will need to paint the wall?
You must show all your working. [4]
| Scheme | Marks | Comments |
|---|---|---|
| (Area of wall =) 7 x 3 – 2 x 1 – \(1.6^2\) x 2 (\(\text{m}^2\)) | M2 | Award M1 for sight of two correct areas used. |
| = 13.88 or 13.9 or 14(\(\text{m}^2\)) | A1 | |
| 3 (tins needed as 3 x 6 = 18 or 13.88 ÷ 6 = 2.3(13…)) | B1 | FT ‘their 13.88’ used provided at least M1 awarded. |
| (4) |